#!/bin/bash

# $1 is path to product directory (engine, program or project)
# $2 is the platform we are incrementing
# $3 is the changlist number if known

PRODUCT_NAME=$(basename "$1")
VERSION_FILE_DIR="$1/Build/$2"
VERSION_FILE="$VERSION_FILE_DIR/$PRODUCT_NAME.PackageVersionCounter"

if [ -z $3 ]; then
	CL=0
else
	CL=$3
fi

VERSION="0.1"
# increment version in the counter file
if [ -f "$VERSION_FILE" ]; then
	VERSION=$(cat "$VERSION_FILE")
fi

# convert to array with . delimiter
IFS="." read -ra VERSION_ARRAY <<< "$VERSION"

# increment and write out
mkdir -p "${VERSION_FILE_DIR}"
echo "${VERSION_ARRAY[0]}.$((VERSION_ARRAY[1]+1))" > "$VERSION_FILE"


MAC_VERSION="0.1"
VERSION_FILE="$1/Build/Mac/$PRODUCT_NAME.PackageVersionCounter"
if [ -f "$VERSION_FILE" ]; then
	MAC_VERSION=$(cat "$VERSION_FILE")
fi

IOS_VERSION="0.1"
VERSION_FILE="$1/Build/IOS/$PRODUCT_NAME.PackageVersionCounter"
if [ -f "$VERSION_FILE" ]; then
	IOS_VERSION=$(cat "$VERSION_FILE")
fi

TVOS_VERSION="0.1"
VERSION_FILE="$1/Build/TVOS/$PRODUCT_NAME.PackageVersionCounter"
if [ -f "$VERSION_FILE" ]; then
	TVOS_VERSION=$(cat "$VERSION_FILE")
fi

VISIONOS_VERSION="0.1"
VERSION_FILE="$1/Build/VisionOS/$PRODUCT_NAME.PackageVersionCounter"
if [ -f "$VERSION_FILE" ]; then
	VISIONOS_VERSION=$(cat "$VERSION_FILE")
fi

# now write out an xcconfig containing all platform build versions relative to the project
XCCONFIG_FILE="$1/Intermediate/Build/Versions.xcconfig"

mkdir -p "$1/Intermediate/Build"
echo "UE_MAC_BUILD_VERSION = $CL.$MAC_VERSION" > "$XCCONFIG_FILE"
echo "UE_IOS_BUILD_VERSION = $CL.$IOS_VERSION" >> "$XCCONFIG_FILE"
echo "UE_TVOS_BUILD_VERSION = $CL.$TVOS_VERSION" >> "$XCCONFIG_FILE"
echo "UE_VISIONOS_BUILD_VERSION = $CL.$VISIONOS_VERSION" >> "$XCCONFIG_FILE"